76856783898 has 16 divisors (see below), whose sum is σ = 153769435776. Its totient is φ = 25609616640.

The previous prime is 76856783893. The next prime is 76856783903. The reversal of 76856783898 is 89838765867.

It is an interprime number because it is at equal distance from previous prime (76856783893) and next prime (76856783903).

It is a super-2 number, since 2×76856783898² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (76856783893) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2309938 + ... + 2342973.

It is an arithmetic number, because the mean of its divisors is an integer number (9610589736).

Almost surely, 2^76856783898 is an apocalyptic number.

76856783898 is an abundant number, since it is smaller than the sum of its proper divisors (76912651878).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

76856783898 is a wasteful number, since it uses less digits than its factorization.

76856783898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4655669.

The product of its digits is 975421440, while the sum is 75.

The spelling of 76856783898 in words is "seventy-six billion, eight hundred fifty-six million, seven hundred eighty-three thousand, eight hundred ninety-eight".